package org.angelica.utils.common;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.env.Environment;

/**
 * @author aizhimin
 */
public class SpringContextUtil implements ApplicationContextAware {
	private static ApplicationContext applicationContext;
	 
	@Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        if(SpringContextUtil.applicationContext == null) {
        	SpringContextUtil.applicationContext = applicationContext;
        }
    }

    /**
     * 获取applicationContext
     * @return
     */
    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    /**
     * 通过name获取 Bean.
     * @param name
     * @return
     */
    public static Object getBean(String name){
        return getApplicationContext().getBean(name);
    }

    /**
     * 通过class获取Bean.
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    /**
     * 通过name,以及Clazz返回指定的Bean
     * @param name
     * @param clazz
     * @param <T>
     * @return
     */
    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }

    /**
     * 获取当前环境
     * @return
     */
    public static String getActiveProfile() {
	    return applicationContext.getEnvironment().getActiveProfiles()[0];
    }

    /**
     * 获取应用名称
     * @return
     */
    public static String getApplicationName(){
        Environment environment = applicationContext.getEnvironment();
        return environment.getProperty("spring.application.name");
    }
}
